
The ketogenic diet is a low-carbohydrate method of eating that involves limiting total carbohydrate intake to fewer than 50 grams per day to achieve and maintain a state of ketosis. Mushrooms are keto-friendly as they are low in carbohydrates, ranging from 3 to 8.5 grams of net carbs per 100 grams of raw weight. They are also high in fiber, B vitamins, minerals like selenium, copper, and potassium, and antioxidants like ergothioneine and glutathione. In addition, mushrooms are a good source of vitamin D, which can be enhanced by exposing them to sunlight before consumption. With their impressive health benefits, mushrooms can be enjoyed in various keto recipes, such as stuffed mushrooms, soups, stir-fries, and salads.
| Characteristics | Values |
|---|---|
| Carbohydrates | 3-8.5 g per 100 g raw weight |
| Fiber | 1.7-4.4 g per 100 g |
| Vitamins | Selenium, B vitamins, Vitamin D |
| Minerals | Copper, potassium |
| Antioxidants | Ergothioneine, glutathione |
| Protein | 2% |
| Fat | <1% |
| Calories | 16 per cup of white mushrooms |
| Health Benefits | May boost testosterone, lower inflammation and the risk of cancer, promote brain function and digestive health |
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What You'll Learn

Mushrooms are keto-friendly
Mushrooms are a great fit for the keto diet as they are low in carbohydrates and sugars, with a 1-cup (96-gram) serving of raw, whole white button mushrooms contributing only 3 grams of carbs to your day. Other types of mushrooms, such as oyster and shiitake, contain around 6 and 7 grams of carbs per cup, respectively. Even the most carb-heavy mushroom, the king oyster mushroom, contains only 8.5 grams of carbs per 100 grams, which is still well below the keto diet's minimum carb threshold.
Mushrooms are also a good source of dietary fiber, which can be difficult to come by on the keto diet as it is typically found in restricted food groups like fruits, vegetables, and grains. The fiber content in mushrooms helps to reduce cravings by promoting a feeling of fullness, making it easier to stick to a low-carb diet.
In addition to their low-carb and high-fiber content, mushrooms offer a host of vitamins and micronutrients that can be lacking in the keto diet. These include B vitamins, selenium, copper, potassium, and antioxidants like ergothioneine and glutathione, which can help protect your cells from oxidative damage.
Mushrooms are also a good source of vitamin D, with one cup of mushrooms containing five IU of the vitamin. Vitamin D-rich mushrooms can be purchased, or you can increase the vitamin D content of your mushrooms by placing them in the sun for a few minutes before cooking.
With their impressive health benefits, low-carb content, and nutrient profile, mushrooms are an excellent choice for a keto-friendly diet. They can be enjoyed in a variety of ways, including raw, cooked, stuffed, sautéed, fried, or added to soups, stir-fries, and scrambles.
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They are low in carbs
Mushrooms are a keto-friendly food with a low carbohydrate content. The exact carb content depends on the variety of mushroom, but they typically contain between two and eight grams of carbohydrates per 100 grams. For example, a cup of raw white button mushrooms contains three grams of carbs, while a cup of raw oyster mushrooms contains six grams. Even the variety with the highest carb content, king oyster mushrooms, contains only 8.5 grams of carbohydrates per 100 grams, which is still well below the minimum carb threshold for keto.
Mushrooms are a good source of dietary fiber, which is typically found in fruits, vegetables, and grains—food groups that are restricted on the keto diet. The fiber content of mushrooms can help reduce cravings by promoting a feeling of fullness, making it easier to stick to a low-carb diet. They are also a good source of vitamins and minerals, including vitamin D, selenium, copper, and potassium.
Mushrooms can be enjoyed in a variety of ways on a keto diet. They can be eaten raw or cooked, and they maintain a firm texture when cooked, making them ideal for stuffing. They can also be sautéed, stir-fried, or added to soups, salads, or scrambled eggs.
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They are rich in nutrients
Mushrooms are a keto-friendly food that can be enjoyed both raw and cooked. They are highly nutritious and rich in essential nutrients and potent bioactive compounds with impressive health benefits.
Mushrooms are a natural source of key vitamins and minerals, including B vitamins like riboflavin (B2), niacin (B3), pantothenic acid (B5), selenium, copper, and potassium. These vitamins help the body convert food into energy and reduce tiredness and fatigue. Selenium, an essential mineral found in mushrooms, contributes to normal immune function.
Mushrooms also contain several antioxidants, like ergothioneine and glutathione, which can help protect your cells from oxidative damage. Regularly eating mushrooms can support a healthy intestinal microflora, may boost testosterone, and is linked to a lower risk of cancer and neurodegenerative conditions.
Mushrooms are a nutrient-dense food that can complement a balanced diet, whether you're following a keto lifestyle or simply looking to include more variety in your meals. They are a versatile ingredient that can be used in a variety of keto-friendly meals, such as salads, soups, stir-fries, and scrambles.
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They can be cooked in various ways
Mushrooms are a keto-friendly food and can be cooked in various ways. They are low in carbohydrates and sugars, packed with fiber, and high in vitamins, minerals, and antioxidants. Here are some ways to cook mushrooms while staying within your keto diet:
Sautéed Mushrooms
Sautéed mushrooms are a perfect low-carb side dish to any main meal. To prepare, heat butter and oil in a large cast-iron skillet over medium heat. Cook the onions until tender, then add the mushrooms and cook until golden brown. Add lemon juice and cook for a few more minutes. Finally, add rosemary and garlic, stir, and cook for another 30 seconds. Adjust the taste with salt and pepper as needed.
Grilled Skewers
Grilling mushroom skewers is a great way to enjoy mushrooms with other keto-friendly foods like salmon. Cut the mushrooms and salmon into chunks, then thread them onto skewers. Grill for about five minutes, then spritz with lemon and season with salt and pepper.
Stuffed Mushrooms
Mushroom caps can be stuffed with keto-friendly ingredients like cream cheese, butter, shredded cheddar, bacon, or your favorite low-carb veggies. Sprinkle with cheese and roast them in the oven.
Soups
Mushrooms can be added to soups, making them a creamy and comforting keto meal. Sauté sliced mushrooms, onions, and garlic in butter or olive oil until softened. Then, add vegetable or chicken broth and simmer for about 20 minutes.
Stir-Fries
Mushrooms can be diced and stir-fried with other keto-friendly ingredients like riced cauliflower, garlic, onion, celery, and cheese.
Salads
Sautéed mushrooms can also be added to salads. Simply prepare the mushrooms ahead of time and gently reheat them before adding them to your salad.
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They are a good source of fiber
Mushrooms are a good source of fiber, which can be challenging to obtain on a keto diet because it is typically found in fruits, vegetables, and grains—foods that are restricted on keto. The fiber content of mushrooms ranges from 1.7 to 4.4 grams of fiber per 100 grams of mushrooms. This is higher than that of carrots or broccoli, which are not keto-friendly foods.
Mushrooms contain two types of dietary fiber: insoluble fiber and soluble fiber. Insoluble fiber bulks up your stool and eases the passage of food through the intestines, promoting healthy digestion. Soluble fiber stabilizes blood glucose levels by slowing down nutrient absorption in the gut. Mushrooms are an excellent source of a specific type of soluble fiber called beta-D-glucan, which has immunomodulatory properties. Beta-D-glucan binds to immune receptors and can up-regulate or down-regulate immune responses according to your body's needs.
The unique fibers in mushrooms can also help reduce cravings and promote a feeling of fullness, making it easier to stick to a low-carb keto diet. For example, oyster mushrooms are high in antioxidants that can fight free radicals and prevent cell damage, helping to lower inflammation.
In addition to their fiber content, mushrooms are a good source of selenium, an antioxidant that helps regulate the thyroid and plays a crucial role in detoxifying the liver. They also contain vitamin D, with one cup of mushrooms providing five IU of vitamin D. If you want to increase the vitamin D content of your mushrooms, you can place them in the sun for a few minutes before cooking, as mushrooms, like humans, produce vitamin D when exposed to sunlight.
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Frequently asked questions
Yes, mushrooms are keto-friendly. They are low in carbohydrates and contain dietary fiber, vitamins, minerals, and antioxidants.
Common types of mushrooms like white button, shiitake, oyster, and portobello are keto-friendly in their natural form.
Mushrooms are highly nutritious and can help support a healthy intestinal microflora, boost testosterone, and lower the risk of cancer and neurodegenerative conditions. They are also a good source of selenium, which is an antioxidant that helps regulate the thyroid.
Mushrooms are versatile and can be enjoyed both raw and cooked. They can be sautéed, stir-fried, stuffed, or added to soups, salads, and veggie burger patties.
While mushrooms are generally low in carbs, they do contain some carbohydrates and should be included in your daily net carb count to avoid blood sugar spikes and maintain ketosis. It is also important to read the nutrition labels on canned or packaged mushroom products, as these may have added ingredients that are not keto-friendly.

























